superior mesenteric vein

In anatomy, the superior mesenteric vein (SMV) is a blood vessel that drains blood from the small intestine (jejunum and ileum). At its termination behind the neck of the pancreas, the SMV combines with the splenic vein to form the hepatic portal vein. The SMV lies to the right of the similarly name artery, the superior mesenteric artery, which originates from the abdominal aorta.
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Superior mesenteric vein n. A vein that begins at the ileum in the right iliac fossa, ascends in the root of the mesentery, and unites behind the [more]Superior mesenteric vein - Community and Resources